Date: Fri, 09 Feb 2001 12:11:41 -0700 From: Chuck Paterson <cp@bsdi.com> To: John Baldwin <jhb@FreeBSD.ORG> Cc: freebsd-arch@FreeBSD.ORG Subject: Re: usb, clists, spltty, splbio Message-ID: <200102091911.f19JBfk06298@grendel.bsdi.com> In-Reply-To: Your message of "Thu, 08 Feb 2001 21:14:08 PST." <XFMail.010208211408.jhb@FreeBSD.org>
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The following code segment is from the top the hid open
routine. I'll start running this code this afternoon. This
is one of those cases where checking it into current does zero
good.
Chuck
Index: uhid.c
===================================================================
RCS file: /cp/cvs.freebsd/src/sys/dev/usb/uhid.c,v
retrieving revision 1.27.2.4
diff -u -r1.27.2.4 uhid.c
--- uhid.c 2000/10/31 22:31:29 1.27.2.4
+++ uhid.c 2001/02/09 19:06:36
@@ -375,6 +375,18 @@
{
struct uhid_softc *sc;
usbd_status err;
+#if defined(__FreeBSD__) && defined(__i386__)
+ static int hid_opened;
+
+ if (hid_opened == 0) {
+ int s;
+ s = splhigh();
+ tty_imask |= bio_imask;
+ update_intr_masks();
+ splx(s);
+ hid_opened = 1;
+ }
+#endif
USB_GET_SC_OPEN(uhid, UHIDUNIT(dev), sc);
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